文件列表:

Attempts (0, 2022-07-22)
Attempts\testImport.js (178, 2022-07-22)
Attempts\testIndexPage.js (755, 2022-07-22)
Attempts\testNewsPage.js (1626, 2022-07-22)
Attempts\testSQL.js (474, 2022-07-22)
Attempts\textExport.js (1191, 2022-07-22)
LICENSE (11357, 2022-07-22)
log.md (19800, 2022-07-22)
page.txt (78252, 2022-07-22)
src (0, 2022-07-22)
src\Crawler (0, 2022-07-22)
src\Crawler\CreateTable.js (547, 2022-07-22)
src\Crawler\ScienceNet (0, 2022-07-22)
src\Crawler\ScienceNet\crawl_log.txt (9847696, 2022-07-22)
src\Crawler\ScienceNet\crawler.js (7092, 2022-07-22)
src\Crawler\ScienceNet\error_log.txt (364873, 2022-07-22)
src\Crawler\ScienceNews (0, 2022-07-22)
src\Crawler\ScienceNews\crawl_log.txt (3873998, 2022-07-22)
src\Crawler\ScienceNews\crawler.js (3839, 2022-07-22)
src\Crawler\ScienceNews\error_log.txt (271537, 2022-07-22)
src\Crawler\TestInsert.js (664, 2022-07-22)
src\Crawler\cas.cn (0, 2022-07-22)
src\Crawler\cas.cn\crawl_log.txt (2575790, 2022-07-22)
src\Crawler\cas.cn\crawler.js (4687, 2022-07-22)
src\Crawler\cas.cn\error_log.txt (200527, 2022-07-22)
src\Crawler\sample.js (3088, 2022-07-22)
src\img (0, 2022-07-22)
src\img\a1.png (43334, 2022-07-22)
src\img\a2.png (58980, 2022-07-22)
src\img\a3.png (189858, 2022-07-22)
src\img\a4.png (115985, 2022-07-22)
src\img\c1.png (70098, 2022-07-22)
src\img\c2.png (13105, 2022-07-22)
src\img\c3.png (123884, 2022-07-22)
src\img\cas.png (278869, 2022-07-22)
src\img\chart.png (83435, 2022-07-22)
src\img\css.png (97524, 2022-07-22)
src\img\errlog.png (216146, 2022-07-22)
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# vary [![NPM Version][npm-image]][npm-url] [![NPM Downloads][downloads-image]][downloads-url] [![Node.js Version][node-version-image]][node-version-url] [![Build Status][travis-image]][travis-url] [![Test Coverage][coveralls-image]][coveralls-url] Manipulate the HTTP Vary header ## Installation This is a [Node.js](https://nodejs.org/en/) module available through the [npm registry](https://www.npmjs.com/). Installation is done using the [`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally): ```sh $ npm install vary ``` ## API ```js var vary = require('vary') ``` ### vary(res, field) Adds the given header `field` to the `Vary` response header of `res`. This can be a string of a single field, a string of a valid `Vary` header, or an array of multiple fields. This will append the header if not already listed, otherwise leaves it listed in the current location. ```js // Append "Origin" to the Vary header of the response vary(res, 'Origin') ``` ### vary.append(header, field) Adds the given header `field` to the `Vary` response header string `header`. This can be a string of a single field, a string of a valid `Vary` header, or an array of multiple fields. This will append the header if not already listed, otherwise leaves it listed in the current location. The new header string is returned. ```js // Get header string appending "Origin" to "Accept, User-Agent" vary.append('Accept, User-Agent', 'Origin') ``` ## Examples ### Updating the Vary header when content is based on it ```js var http = require('http') var vary = require('vary') http.createServer(function onRequest (req, res) { // about to user-agent sniff vary(res, 'User-Agent') var ua = req.headers['user-agent'] || '' var isMobile = /mobi|android|touch|mini/i.test(ua) // serve site, depending on isMobile res.setHeader('Content-Type', 'text/html') res.end('You are (probably) ' + (isMobile ? '' : 'not ') + 'a mobile user') }) ``` ## Testing ```sh $ npm test ``` ## License [MIT](LICENSE) [npm-image]: https://img.shields.io/npm/v/vary.svg [npm-url]: https://npmjs.org/package/vary [node-version-image]: https://img.shields.io/node/v/vary.svg [node-version-url]: https://nodejs.org/en/download [travis-image]: https://img.shields.io/travis/jshttp/vary/master.svg [travis-url]: https://travis-ci.org/jshttp/vary [coveralls-image]: https://img.shields.io/coveralls/jshttp/vary/master.svg [coveralls-url]: https://coveralls.io/r/jshttp/vary [downloads-image]: https://img.shields.io/npm/dm/vary.svg [downloads-url]: https://npmjs.org/package/vary

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